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Put the neon lamp at the end of a one foot plastic rod. Harvey

re: Ebay sky high. I almost hate to rub it in, but did you see the link I put up the other day, from eBay? A fellow in Corona California selling six plug in modules he had gotten from a storage unit

Hi Jeff, Well, glad you are cautious...we don’t need any “did you hear about Jeff...” posts popping up. ? Still, and fwiw, you don’t have to get very close with the neon bulb, in fact, not

Many thanks!!! I am often amazed by the expertise and help available on the web. Thanks again, Dave

Renée, What I've got is a Weller TC202 with a TC201P iron that I inherited from my father, with three tips (long conical #8, screwdriver #7, and narrow screwdriver #6). From a Weller tech sheet I

Jeff- what i used and found worked best is the old 100/140W weller solder gun, actual temp? I do not know , in and out fast. I am sure one of the chisel tips would also work if they have enough mass.

Then there is the other trick of powering-on, if safe to do so, and turning out the room lights for a few seconds. (Stand back) This should show any arcing or flashovers in the HV compartment.

Renée and Harvey, The scope still has it's emergency spool of silver solder, apparently unused, but I also bought three 0.35 oz coils of Kester 62/36/2 silver solder when I was working on the 475 or

Kieth, That's an interesting trick to know about, but I already invested in a 40 kV probe (and heavy rubber gloves) back when I was working around the HV section of my 475. I think I'll stick to the

Jeff- make sure you use silver bearing solder on the ceramic strips. sometimes the strips can be cleaned...but ya have new ones on the way moot point. too much heat too long will also cause the silver

I've heard that you need to be careful how you solder to those ceramic strips.? What I did hear is that you do not put the iron tip in the notch.? Pleas check to make sure I got it right. Harvey

Keith, I have not done that trick in some time. I have done it before. Great way to test for high voltage being present. Mark

The story I'd heard was that Intel learned that silicon nitride is excellent at gettering or otherwise blocking sodium. They pissed away a fortune trying to make a good gate insulator out of the

Guessing you both know the trick about holding a little NE-51 or similar neon bulb in close proximity to the HV section to confirm its operation? If your HV section is working, the little neon will

Jeff, Brenda is right about the corona dope. Leave those strips in. Clean them to remove dust. I have not seen any of the black beauties any good. These are a wax condenser in a plastic case. I

Hi Jeff, I am glad that I was able to contribute this this forum. I would have to say, in my opinion, since you started to clean that section, you should keep cleaning it until it is spotless. I have

Brenda, thanks for that tip; I had never heard of "corona dope" before, but a quick google search (on the correct term) reveals all. Any idea how I would test be certain that everything is okay? I

Hi Jeff! Great to see you are working on your 533A! I have one as well, but it's in really bad shape on the inside. Those 2 back strips is perfectly normal. My 535A and my 545A is like that as well. I

Fresh off of several victories with my 7603 and plug-ins, I turned my attention tonight to the 533A and found the courage to peek inside the left half of the HV section (the section on the opposite

Yeah, Tom, I remember reading about Gordon Moore or somebody else at Intel meeting with a gentleman from another semiconductor house and revealing the sodium issue in exchange for the solution to